小编Cdr*_*ndr的帖子

从我的create table脚本中,我将hasMultipleColors字段定义为BIT:

hasMultipleColors BIT NOT NULL,

运行INSERT时,不会为此或其他BIT字段抛出警告,但选择行会显示所有BIT值都为空.

手动尝试从命令行更新这些记录会产生奇怪的效果 - 显示记录匹配并更改(如果适用),但仍然始终显示为空白.

服务器版本:5.5.24-0ubuntu0.12.04.1(Ubuntu)

mysql> update pumps set hasMultipleColors = 1 where id = 1;
Query OK, 0 rows affected (0.00 sec)
Rows matched: 1  Changed: 0  Warnings: 0

mysql> select hasMultipleColors from pumps where id = 1;
+-------------------+
| hasMultipleColors |
+-------------------+
|                  |
+-------------------+
1 row in set (0.00 sec)

mysql> update pumps set hasMultipleColors = b'0' where id = 1;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 …